Back in 2010, politicians on both sides of the aisle were worried that they could be knocked out of office by people who wanted "build up a fence". Immigration, for instance, was a major rallying cry for insurgent Tea Party activists. A New York Times report at the time noted:

"Enforcement would be more far-reaching than anything in place now – or anything proposed by the administration of President George W Bush."

Now, however, Americans of all stripes have become increasingly progressive on almost all the issues around illegal immigration.

An overwhelmingly majority of Americans now believe that people who came to this country illegally should not be forced to leave it. In the latest CBS News poll, 74% of Americans – a record high – believe that undocumented immigrants should be allowed to apply for citizenship or stay as guest workers. That's up from 57% in mid-2011. Per a Public Religion Research Institute (PRRI) survey, there isn't a single demographic group opposed to this proposal, and that includes Tea Partiers, Republicans and white people without a college degree.

More amazingly, more Americans now believe in a pathway to citizenship, rather than a guest worker program. CBS News found that a majority of Americans, 53%, are now in favor of letting citizens stay and apply for citizenship. That percentage is way up from 37% in 2011, while the percentage of Americans who support a guest worker program has stayed steady, at about 20%.

While Americans are pretty evenly split on offering outright citizenship to undocumented immigrants, they see young people differently. Well over 60% of Americans, and as many as 74% in a CBS News survey, are in favor of a pathway to citizenship for children who came here under the age of 30 – so long as they meet certain conditions. In the CBS News survey, this includes 60% of Republicans. This support is emphatically up from 2010, when only 54% of Americans would vote for a similar policy, per Gallup.

Perhaps more important than any one immigration policy is the motive behind the policy. A slim majority of Americans now believes that an immigration plan should focus on providing legal residency to people here, rather than on stopping the flow of immigrants into the country. Per CNN/ORC, the generational divide is wide. Over 60% of those under 50 put priority on integration, while those 50 and older are far more evenly split. Majorities of Democrats, independents and white people prioritize residency.

Since May 2010, there has been a 15pt increase in the percentage of Americans who want to concentrate on how best to let undocumented immigrants stay. The percentage of those who want to increase attention on policing the border has dropped from 60% to only 43%.

Indeed, the attitude towards immigrants themselves has changed tremendously over the past few years. Today, 49% of Americans believe that the hard work of immigrants strengthens the country, and only 41% believe they are a burden, according to Pew. In 2006, the margin was reversed with 52% saying immigrants were a burden and 41% disagreeing. We should only expect the margin to rise in the future, as 59% of 18-29 year-olds say immigrants strengthen society, while only 37% of people 65 and older agree.

So what does this all mean for the immigration debate going forward?

Whatever policy the GOP espouses, immigration, in and of itself, isn't likely to cost Republicans many votes. The issue ranks very low for most voters, and most Latino voters are Democratic for other reasons.

The real problem for the Republican party is that its brand is currently in the can. With favorable numbers in the low 30s, the GOP is seen as out-of-step with Americans on many issues.

That's why you're seeing Democrats jumping out to a large lead on the House ballot for 2014. The latest Quinnipiac poll puts Democrats up by 8pt, more than enough for them to take back the House. Voters are, at this point, not willing to vote for the party that opposes what they believe in. What Republicans don't need, then, is another issue – that is, immigration – that contributes to notion that they're out-of-touch with the way most Americans feel.

Opposing immigration reform would be yet another instance of GOP "obstructionism", which is what most people see as the Republicans' biggest fault. Unlike certain issues on which Americans agree with Democratic positions but trust Republicans to handle better – gun control, for example – voters are connecting immigration position with political party. More voters trust the Democrats on immigration; voters trust Obama over congressional Republicans on immigration reform by a 17pt margin.

Whether or not voters will still think Republicans clueless in the run-up to the midterm elections is another question. Right now, though, we can only say that progressive immigration reform has become popular – and opposing change won't help Republicans at all.